Jar Explorer Documentation

This repository provides documentation on how to inspect, extract, and decompile Java JAR files.

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Table of Contents

• Extracting a JAR File
• Decompiling a JAR File
• Tools
• References

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Extracting a JAR File

You can extract the contents of a JAR file using the unzip command:

unzip myfile.jar -d output_folder

• myfile.jar – the JAR file you want to extract
• output_folder – the directory where files will be extracted

After extraction, you will see the folder structure of the JAR, including any .class files, resources, and the META-INF directory.

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Decompiling a JAR File

To view the Java source code from compiled .class files, you can use JD-GUI:

1. Download and install JD-GUI.
2. Open your JAR file:

jdgui classes.jar

3. Browse the packages and classes, and optionally export the source code.

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Tools

• unzip – standard utility to extract JAR/ZIP files
• JD-GUI – Java decompiler GUI for .class files

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References

• JD-GUI Official Website
• Java .jar file documentation